UNIT 4: BIOLOGY
Chapter 1: The Biosphere of Life
NAME
:____________________
Learning Objectives: Biology
MAJOR CONCEPT #1: Ecosystems
I CAN…
o
Analyze a terrestrial or aquatic ecosystemo
Distinguish between biotic and abiotic factorso
Infer abiotic effects on life (light, nutrients, water, temperature)o
Infer biotic interactions ( predator-prey, competition, symbiotic relationships)o
Describe the key stages of primary succession and the nature of its climaxcommunity
o
Differentiate between primary and secondary succession in a specificterrestrial/aquatic ecosystem
o
Describe the potential impact of habitat destruction on an ecosystemo
Describe the effects of introducing or removing a specieso
Perform a field study of an aquatic of terrestrial ecosystemMAJOR CONCEPT #2: Ch.1 – Cycling of Matter
I CAN…
o
Outline the nitrogen, carbon, oxygen, and water cycle (hydrologic cycle)o
Describe artificial and natural factors that affect the biogeochemical cycleso
Describe how energy flows in an ecosystem (conservation of energy and trophiclevels)
o
Describe how trophic levels can be pyramids of numbers, biomass, or energyMAJOR CONCEPT #3: Ch.2 – Adaptations & Evolutionary Change
I CAN…
o
Describe mutation as the cause for variationo
Identify the role of sexual reproduction in generating variabilityo
Describe the adaptation of a species over timeo
Describe evidence for evolution by natural selection (Buffon, Lyell, Mathus, andWallace)
o
Compare graduated evolution and punctuated equilibrium (Lamarckian andDarwinian)
o
Describe how some factors impacts population sizeo
Compare the growth pattern of the human population to other speciesLesson 1 Element #1 Appendix 2
Biotic/Abiotic Venn Diagram
LIST: Biotic or Abiotic?
•
air
•
aluminum
•
apple seeds
•
bread
•
clock
•
clouds
•
corpse
•
cotton fabric
•
finger nails
•
fish
•
glass
•
gold
•
grapes
•
hair
•
paper
•
pipe
•
plant
•
plastic
•
pork chops
•
salad
•
sand
•
snail
•
steak
•
water
•
whale
Topic&1.1
Water:'An'Essen,al'Abio,c'Factor
(pp.&406-412)&
Science&20&–&Unit&D:&Biology
1Topic&1.2
Bio,c'Factors:'The'Influence'of'Living'
Things
(pp.&413-422)&
&
1Learning&Objec;ves
5
Abio;c&vs&Bio;c?
5
What&is&Ecology?
•
>ology&=&
“the%study%of”
•
Eco&=&
ecosystem
•
Ecology&is&the&Study&of&an&Ecosystem
•
Ecosystem&=&All&the&living&and&non>living&things&
in&an&area&that&interact&with&each&other.
•
Therefore:&Ecology&is&
the'study'of'how'living'
and'non@living'things'interact'in'an'area
6
6
ECOSYSTEM
9
Species&=&one
&type&of&organism&that&is&
dis;nct
&
from&other&organism&(they&can&reproduce&with&
one&another)&
>eg.&chimpanzee&&diff.&species&than&gorilla
Species
9
10
Popula;ons
(group&of&organisms& from&the&same&species& in&the&same&area)
10
11
Different&popula;ons&living&
together&and&interac;ng
11
ABIOTIC&FACTORS
12
Habitat&vs&Ecosystem
•
Habitat&>&specific&to&one&type&of&organism
•
Ecosystem&>&ALL&living&things
•
HABITAT&=&all&the&bio6c&&&abio6c&factors&in&an&
area&that&encourage&the&reproduc6on&and&
survival&of&one&par6cular&organism.
•
Ecosystem&=&all&the&bio6c&&&abio6c&factors&in&
an&area&that&interact
1313
ASSIGNMENT
•
Read&pp.406>416&in&textbook
•
Ques6ons:
–
p.412&>&Q’s&1>4
•
Poster&Graphic&Organizer
–
In&1.2&the&textbook&describes&a&Prairie&Ecosystem,&
make&an&informa6ve&poster&that&includes&
examples,&defini6ons,&and&pictures&(hand&drawn&or&
printed)&of&the&following:
• Species,&Popula6ons,&Community,&Habitat,&Abio6c,& Bio6c,&and&Ecosystem
14
1.2 - Biotic Factors
(pp. 416-422)
1
Learning(Objec-ves
1. investigate and analyze an aquatic or a terrestrial local ecosystem, distinguish between biotic and abiotic factors, describe how these factors affect population size and • infer the abiotic effects on life; e.g., light, nutrients, water,
temperature
• infer biotic interactions; e.g., predator-prey relationships, competition, symbiotic
relationships
2
2
Ecology: the study of the interaction of living organisms with one another and their physical environment.
3
Population: a group of organisms, all of the same species, which interbreed and live in the same area at the same time.
4
88
Symbiosis: two or more species live in close contact.
Examples?
Symbiosis
Mutualism Commensalism Parasitism
5
Mutualism: a symbiotic relationship in which both species benefit
Bali Island, Indonesia. A cleaner shrimp cleaning parasites from
a moray eel's mouth
6
An example of mutualism is the relationship between clownfish that dwell among the tentacles of tropical sea anemones. The territorial fish protects the anemone from anemone-eating fish, and in turn the stinging tentacles of the anemone protect the clownfish from its predators (a special mucus on the clownfish protects it from the stinging tentacles).
Parasitism: a symbiotic relationship in which on one organisms benefits, while the other is harmed.
Tapeworm: Humans occasionally become infected by ingesting cereals contaminated with insect pests (intermediate hosts of this parasite). Symptoms include abdominal pain, diarrhea and headache.
9
Cowbirds engage in “brood parasitism”
10
Competition: an interaction in which two or more organisms battle for the same resources.
11
Predation: a predator eats a prey.
Tuberculosis bacteria feeding on human lung tissue
12
Topic&1.3
“
Web$of$Life”
(pp.&423.432)
Science&20&–&Unit&D:&Biology
1 1Learning&Objec9ves
•
I&can&analyze&and&describe&energy&flow&in&an&ecosystem& using&the&following&concepts: 1. ConservaFon&of&Energy&(2nd&Law&of&Thermodynamics) 2. Energy&input&&&output&in&trophic&levels&(10%&rule) 3. Food&chains,&food&webs,&and&pyramids. 4. Specific&examples&of&heterotrophs&&&autotrophs.•
I&can&explain&why&biomass&and&populaFon&size&are&related& to&trophic&level. 2 2DO&NOW:&
.read&pp.423.424&and&complete&the&table&
below&(refer&to&last&page&of&
handout
)
Roles&of&Organisms
5Sun
Autotrophs
Heterotrophs
Producers Primary&Consumers Secondary&Consumers Ter9ary&Consumers Herbivore Carnivore or Omnivore Carnivore or Omnivore 5•
_______________ (“self feeders”) can
produce their own food.
•
Also called ____________________.
•
They make up 99% of all biomass.
6
Autotrophs
producers
6
•
______________ (also called consumers)
obtain their energy from autotrophs
directly or by eating another heterotroph.
•
Primary consumers (________________)
feed directly on producers.
Heterotrophs
herbivores
•
Secondary consumers (carnivores or
•
Higher levels
include tertiary
or even
quaternary
(also called top
order)
consumers.
9
9
•
___________________ are heterotrophs,
such as bacteria or fungi, that extract the
last bit of energy from dead organisms.
1.&Food&Chain
13
13
Disadvantages&of&Food&Chain
•
Too&simplisFc,&only&shows&one&predator]prey&
relaFonship
–
in&reality,&a&predator&eats&more&than&one&species
–
no&representaFon&of&the&amount&of&energy&transfer
14
Heat Loss
Heat Loss
Heat Loss
14
•Shows a more complex feeding pattern
than a food chain.
•Webs still
do not
show
energy
efficiency
2.&Food&Web
.all&the&food&webs&in
an&ecosystem
•Can be kinda
- three types:
a. Pyramid of _____________ - trophic
levels are arranged with producers at
the bottom with highest trophic level
at the top.
•
Levels are
population
numbers
drawn to
scale.
3.&&Pyramids
Numbers
17
18
18
•
Pyramids of Numbers aren’t always
pyramid shaped....
19
b.
Pyramid of ______________ - shows
the mass of living material at a trophic
level.
Biomass
20
16
16
21
21
c.
Pyramid of _____________ - shows
the amount of energy available for
organisms at each trophic level.
10%&Rule
]about&10%&of&each& trophic&level’s&energy& is&passed&on&to&the& next.
Energy
22
___________________/Bioamplification
•
Certain chemicals are stored in cells for
long periods of time. E.g. mercury or DDT
(an insecticide)
•
Low levels of poisons
in producers and
primary consumers
are concentrated in
higher trophic
consumers due to the
number of prey
consumed.
Biomagnifica9on
25 26
27
Assignment:
•
QuesFon&25&on&pp.&427&&&428
•
QuesFons&2]6&on&p.&432
28
28
18
• Where does the matter in your body come from?_____________________________________________
• Biosphere: ______________________________________________________________________________
• Biotic factor:____________________________________________________________________________________
• Abiotic factor:___________________________________________________________________________________
• Ecosystem:_____________________________________________________________________________________
• Habitat:________________________________________________________________________________________
• Earth is a _______________ system, meaning that matter is _________________ and energy is continualy ________________.
MAIN FUNCTIONS: HUMAN IMPACTS:
1)_____________________________________________ 1) ______________________________________________________________________
2)_____________________________________________ 2)_______________________________________________________________________
3)_____________________________________________ 3)_______________________________________________________________________
CELLULAR RESPIRATION IN ANIMALS:
C
6H
12O
6+ O
2
________ + ________
(glucose)
PHOTOSYNTHESIS IN PLANTS:
CO
2+ H
2O
________ + ________
MAIN FUNCTION: HUMAN IMPACTS:
1) ______________________________ 1) ____________________________________________________________________
2) ____________________________________________________________________
22
22
MAIN FUNCTIONS:
1) _______________________________________________
________________________________________________
2) ________________________________________________
________________________________________________
HUMAN IMPACTS:
1) _____________________________________________________
______________________________________________________
______________________________________________________
Stratospheric ozone concentration over Antartica
U.V. RADIATION CAN CAUSE:
Nitrogen is a raw material used in protein and cell genetic codes (DNA), but N
2gas
cannot be directly used by most organisms.
There are four main ways in which nitrogen can be made into a usable form:
1.
2.
3.
4.
24
Disrupting the Nitrogen Cycle
Humans can disrupt the nitrogen cycle through
Topic&1.6
“Biodiversity&&&Human&Impact”
(pp.&453?463)
Science&20&–&Unit&D:&Biology
1
What is Biodiversity?
•
Biodiversity
is the variety of ecosystems,
species and genes in an area. Boreal forests
and rain forests have more biodiversity.
2
What is the connection between
the caribou and food packaging?
• The woodland caribou need a forest that is older
than 80 years to grow enough tree lichen, their
main winter food.
• Food packaging comes from oil and natural gas.
Oil and natural gas companies cut down the trees
in the north for exploration and removal.
• This tree removal has contributed to making the
caribou a
endangered species (may soon no
longer exist)
and decreasing the biodiversity.
3
What are the categories of species risk?
4
26
26
What affects biodiversity and
endangers species?
1. Habitat Fragmentation
2. Habitat destruction
3. Invasive Species (introduced exotic
species)
4. Clash between ecological systems and
economic systems
5
What is Habitat Fragmentation?
• Habitat fragmentation is the change of a
complete habitat into patches separated by
non-habitat areas. This is caused by
building houses, farms and seismic lines
6
What is Habitat Destruction?
• Habitat destruction is the permanent
alteration of vital characteristics in an
organism’s habitat. Ie) trees in the forest
Invasive Species
• a species that does not normall occur in an
area
• usually introduced by accident through
overseas shipments (boat, plane, spaceship)
• no Natural Predators so they can usually
Zebra Mussels
9
9
Purple Loosestrife
10
10
Assignment: Read Topic 1.6 in
textbook and answer:
• p. 455 - Q 46
• p. 456 - Q 48
• p. 458 - Q’s 50, 51, 52
• p. 459 - Q’s 53, 54, 55
• p. 462 - Q’s 1, 4, 5
11